Stroma vs Stoma
Nyob hauv cov nroj tsuag, kev sib pauv gaseous tshwm sim los ntawm lub stomata thiab lub teeb ywj pheej ntawm cov photosynthesis tshwm sim hauv stroma.
Stoma yog dab tsi?
Ib lub stoma yog ib qho pore microscopic ncig los ntawm ob lub hlwb tshwj xeeb uas muaj nyob hauv nplooj thiab stems. Nws lub luag haujlwm tseem ceeb yog kev sib pauv gaseous. Nyob rau hauv tag nrho cov dicots thiab ib co monocots, cov neeg zov lub hlwb yog lub raum zoo li tus los yog taum noob zoo li tus. Tej zaum lawv yuav yog los yog tsis nyob ib puag ncig los ntawm 2 lossis 3 lub hlwb, uas txawv ntawm lwm cov kab mob epidermal. Lub phab ntsa ntawm cov cell tiv thaiv nyob ib puag ncig lub pore yog tuab dua li lwm qhov chaw. Lub 2 lub cev tiv thaiv tau ruaj khov ua ke ntawm 2 qhov kawg. Cov hlwb tiv thaiv dais chloroplasts. Hauv cov nyom thiab hedges, cov neeg zov lub hlwb yog dumb tswb zoo li. Muaj ob daim duab peb sab zoo li cov khoom siv ntawm ob sab. Cov stomata no tau teem rau hauv cov qauv tsis tu ncua. Lawv yog linearly teem parallel rau ib leeg thaum, nyob rau hauv dicots, lawv yog irregularly tawg. Feem ntau lub stomata qhib thaum nruab hnub thiab kaw thaum hmo ntuj. Qhov ntawd yog tus cwj pwm diurnal. Lub sij hawm ntawm lub hnub thaum stomata qhib tej zaum yuav txawv nyob rau hauv txhua hom nroj tsuag. Qhib thiab kaw vim qhov hloov pauv ntawm turgidity ntawm cov cell zov. Cov kev hloov pauv sai ntawm cov dej muaj peev xwm hauv cov neeg zov me nyuam ua rau lawv nqus los yog poob dej los ntawm lossis mus rau cov hlwb nyob sib ze. Muaj cov cellulose microfibrils nyob rau hauv cov phab ntsa ntawm tes uas tau teem ib ncig ntawm lub voj voog raws li lawv tau tawg los ntawm qhov chaw ntawm stomata; lawv hu ua radial micellations. Thaum cov dej nkag mus rau hauv cov neeg zov lub hlwb, cov neeg zov lub hlwb nthuav dav uas lawv tsis tuaj yeem nce ntau hauv txoj kab uas hla vim radial micellations. Cov neeg zov lub hlwb nce qhov ntev tshwj xeeb ntawm lawv cov phab ntsa nyias nyias vim tias cov phab ntsa sab hauv yog tuab dua. Raws li lawv o sab nraud, cov microfibrils rub lub phab ntsa sab hauv nrog lawv, yog li qhib stomata.
Stroma yog dab tsi?
Chloroplast yog ib puag ncig los ntawm ob daim nyias nyias. Cov membranes no tsim lub hnab ntawv chloroplast. Chloroplasts muaj chlorophyll thiab lwm yam photosynthetic pigments, uas yog nyob rau hauv ib tug system ntawm daim nyias nyias. Cov membranes khiav los ntawm cov khoom hauv av los yog stroma. Lub stroma yog qhov chaw ntawm lub teeb ywj pheej ntawm photosynthesis. Cov qauv yog gel zoo li muaj cov enzymes soluble tshwj xeeb tshaj yog cov Calvin voj voog thiab lwm yam tshuaj xws li qab zib thiab cov organic acids.
Qhov txawv ntawm Stroma thiab Stoma yog dab tsi?
• Ib lub stoma yog ib lub pore microscopic ncig los ntawm ob lub hlwb tshwj xeeb uas muaj nyob hauv nplooj thiab stems. Nws lub luag haujlwm tseem ceeb yog kev sib pauv gaseous.
• Qhov chaw ntawm lub teeb ywj pheej ntawm cov photosynthesis yog stroma. Cov qauv yog gel zoo li muaj cov enzymes soluble tshwj xeeb tshaj yog cov Calvin voj voog thiab lwm yam tshuaj xws li qab zib thiab cov organic acids.
